Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818992 | Excessive altitude loss after take-off warning system for rotary wing aircraft | — | 1989-04-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818992 | Excessive altitude loss after take-off warning system for rotary wing aircraft | — | 1989-04-04 |